/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io.gcp.pubsub;



import com.bff.gaia.unified.sdk.coders.ByteArrayCoder;

import com.bff.gaia.unified.sdk.coders.Coder;

import com.bff.gaia.unified.sdk.coders.CustomCoder;

import com.bff.gaia.unified.vendor.guava.com.google.common.collect.ImmutableMap;



import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;



/** A coder for PubsubMessage treating the raw bytes being decoded as the message's payload. */

public class PubsubMessagePayloadOnlyCoder extends CustomCoder<PubsubMessage> {

  private static final Coder<byte[]> PAYLOAD_CODER = ByteArrayCoder.of();



  public static PubsubMessagePayloadOnlyCoder of() {

    return new PubsubMessagePayloadOnlyCoder();

  }



  @Override

  public void encode(PubsubMessage value, OutputStream outStream) throws IOException {

    encode(value, outStream, Context.NESTED);

  }



  @Override

  public void encode(PubsubMessage value, OutputStream outStream, Context context)

      throws IOException {

    PAYLOAD_CODER.encode(value.getPayload(), outStream, context);

  }



  @Override

  public PubsubMessage decode(InputStream inStream) throws IOException {

    return decode(inStream, Context.NESTED);

  }



  @Override

  public PubsubMessage decode(InputStream inStream, Context context) throws IOException {

    return new PubsubMessage(PAYLOAD_CODER.decode(inStream, context), ImmutableMap.of());

  }

}